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1 #
2 # Configuration for initramfs
3 #
45 config INITRAMFS_SOURCE
6 string "Initramfs source file(s)"
7 default ""
8 help
9 This can be either a single cpio archive with a .cpio suffix or a
10 space-separated list of directories and files for building the
11 initramfs image. A cpio archive should contain a filesystem archive
12 to be used as an initramfs image. Directories should contain a
13 filesystem layout to be included in the initramfs image. Files
14 should contain entries according to the format described by the
15 "usr/gen_init_cpio" program in the kernel tree.
1617 When multiple directories and files are specified then the
18 initramfs image will be the aggregate of all of them.
1920 See <file:Documentation/early-userspace/README> for more details.
2122 If you are not sure, leave it blank.
2324 config INITRAMFS_ROOT_UID
25 int "User ID to map to 0 (user root)"
26 depends on INITRAMFS_SOURCE!=""
27 default "0"
28 help
29 This setting is only meaningful if the INITRAMFS_SOURCE is
30 contains a directory. Setting this user ID (UID) to something
31 other than "0" will cause all files owned by that UID to be
32 owned by user root in the initial ramdisk image.
3334 If you are not sure, leave it set to "0".
3536 config INITRAMFS_ROOT_GID
37 int "Group ID to map to 0 (group root)"
38 depends on INITRAMFS_SOURCE!=""
39 default "0"
40 help
41 This setting is only meaningful if the INITRAMFS_SOURCE is
42 contains a directory. Setting this group ID (GID) to something
43 other than "0" will cause all files owned by that GID to be
44 owned by group root in the initial ramdisk image.
4546 If you are not sure, leave it set to "0".
4748 config RD_GZIP
49 bool "Support initial ramdisks compressed using gzip"
50 depends on BLK_DEV_INITRD
51 default y
52 select DECOMPRESS_GZIP
53 help
54 Support loading of a gzip encoded initial ramdisk or cpio buffer.
55 If unsure, say Y.
5657 config RD_BZIP2
58 bool "Support initial ramdisks compressed using bzip2"
59 default y
60 depends on BLK_DEV_INITRD
61 select DECOMPRESS_BZIP2
62 help
63 Support loading of a bzip2 encoded initial ramdisk or cpio buffer
64 If unsure, say N.
6566 config RD_LZMA
67 bool "Support initial ramdisks compressed using LZMA"
68 default y
69 depends on BLK_DEV_INITRD
70 select DECOMPRESS_LZMA
71 help
72 Support loading of a LZMA encoded initial ramdisk or cpio buffer
73 If unsure, say N.
7475 config RD_XZ
76 bool "Support initial ramdisks compressed using XZ"
77 depends on BLK_DEV_INITRD
78 default y
79 select DECOMPRESS_XZ
80 help
81 Support loading of a XZ encoded initial ramdisk or cpio buffer.
82 If unsure, say N.
8384 config RD_LZO
85 bool "Support initial ramdisks compressed using LZO"
86 default y
87 depends on BLK_DEV_INITRD
88 select DECOMPRESS_LZO
89 help
90 Support loading of a LZO encoded initial ramdisk or cpio buffer
91 If unsure, say N.
9293 config RD_LZ4
94 bool "Support initial ramdisks compressed using LZ4"
95 default y
96 depends on BLK_DEV_INITRD
97 select DECOMPRESS_LZ4
98 help
99 Support loading of a LZ4 encoded initial ramdisk or cpio buffer
100 If unsure, say N.

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